{
  "schema_version": "1.4.0",
  "id": "GHSA-22h5-pq3x-2gf2",
  "modified": "2025-03-04T15:47:31Z",
  "published": "2025-03-03T22:07:53Z",
  "aliases": [
    "CVE-2025-27221"
  ],
  "summary": "URI allows for userinfo Leakage in URI#join, URI#merge, and URI#+",
  "details": "There is a possibility for userinfo leakage by in the uri gem.\nThis vulnerability has been assigned the CVE identifier CVE-2025-27221. We recommend upgrading the uri gem.\n\n## Details\n\nThe methods `URI#join`, `URI#merge`, and `URI#+` retained userinfo, such as `user:password`, even after the host is replaced. When generating a URL to a malicious host from a URL containing secret userinfo using these methods, and having someone access that URL, an unintended userinfo leak could occur.\n\nPlease update URI gem to version 0.11.3, 0.12.4, 0.13.2, 1.0.3 or later.\n\n## Affected versions\n\nuri gem versions < 0.11.3, 0.12.0 to 0.12.3, 0.13.0, 0.13.1 and 1.0.0 to 1.0.2.\n\n## Credits\n\nThanks to Tsubasa Irisawa (lambdasawa) for discovering this issue.\nAlso thanks to nobu for additional fixes of this vulnerability.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N"
    },
    {
      "type": "CVSS_V4",
      "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "uri"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.11.3"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "uri"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0.12.0"
            },
            {
              "fixed": "0.12.4"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "uri"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0.13.0"
            },
            {
              "fixed": "0.13.2"
            }
          ]
        }
      ]
    },
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "uri"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "1.0.0"
            },
            {
              "fixed": "1.0.3"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27221"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/uri/pull/154"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/uri/pull/155"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/uri/pull/156"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ruby/uri/pull/157"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/2957667"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ruby/uri"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uri/CVE-2025-27221.yml"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-27221"
    },
    {
      "type": "WEB",
      "url": "https://www.ruby-lang.org/en/news/2025/02/26/security-advisories"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200",
      "CWE-212"
    ],
    "severity": "LOW",
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-03T22:07:53Z",
    "nvd_published_at": "2025-03-04T00:15:31Z"
  }
}